Real-time specifications

Alexandre David, Kim Guldstrand Larsen, Axel Legay, Ulrik Mathias Nyman, Louis-Marie Traonouez, Andrzej Wasowski

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    Abstract

    A specification theory combines notions of specifications and implementations with a satisfaction relation, a refinement relation, and a set of operators supporting stepwise design. We develop a specification framework for real-time systems using Timed I/O Automata as the specification formalism, with the semantics expressed in terms of Timed I/O Transition Systems. We provide constructs for refinement, consistency checking, logical and structural composition, and quotient of specifications—all indispensable ingredients of a compositional design methodology. The theory is implemented in the new tool ECDAR. We present symbolic versions of the algorithms used in ECDAR, and demonstrate the use of the tool using a small case study in compositional verification.
    OriginalsprogEngelsk
    TidsskriftInternational Journal on Software Tools for Technology Transfer
    Sider (fra-til)1-29
    Antal sider29
    ISSN1433-2779
    DOI
    StatusUdgivet - aug. 2013

    Emneord

    • Real-time systems
    • Stepwise-refinement
    • Compositional verification
    • Timed I/O automata

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